I would say no due to the fact that other downpipes will not bolt exactly ti either the same spot or the same angle as the APS. The APS exhaust is different from most turbo backs in that respect. So it wont be a direct bolt up but im sure a muffler shop could do it for you. Just a question if you have the turbo back set up now why do you want to ditch the APS downpipe and for witch downpipe were you thinking of getting.
Ryan

 

dont forget there is a hole bunch of great turbos that are ihi and mitsu turbos. Like the td05, vf 34, vf30 most people like the last to alot. Just food for thought and if you want to sell the downpipe let me know

 

That TBE might be my next upgrade. Did you get the hi-flow cat? Any chance you can post a sound clip once you've done the install?